R-HOP for PDI barrels ONLY,60°
-injection molded
-silicone made to provide required backspin for the heavyest BBs (in F.A.S.T. lift .45 at setting ~1)
-made with perfect fitment in PDI barrel
-no cuts required
-thickness is the same as the barrel walls
-does what any other well made R-hop has to

7$